Great all around
RVMattress.comSignature Hybrid
- Hybrid
- 13.25 in thick
- Soft / Medium / Firm
Sleep Foundation: Best Mattress Overall Read review
$1,465Queen · list priceSee price
Winnebago Access 18RK mattress size
Main bed60 × 80 inQueen
That's the same size as a regular queen, so any standard queen mattress fits.
About the RV queen size →Winnebago spec sheet, 2026.
Mattresses in 60 × 80 in
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Best value
RVMattress.comCopperFlex Essential
- All-foam
- 6 in thick
- five comfort options
$524Queen · list priceSee price
Firm
RVMattress.comPlank Firm Luxe
- Hybrid
- 13 in thick
- Firm / Extra Firm
$1,598Queen · list priceSee price
Cooling
RVMattress.comAurora Luxe Cooling
- Hybrid
- 13.25 in thick
- Soft / Medium / Firm
Sleep Foundation: Best Mattress for Temperature Regulation Read review
$1,999Queen · list priceSee price
Heavy duty
RVMattress.comTitan Plus Luxe
- Hybrid
- 13 in thick
- Plush
$1,665Queen · list priceSee price
Helix pick
HelixHelix Midnight
- Hybrid
- 11.5 in thick
- Medium Feel
Sleep Foundation: Best Mattress for Side Sleepers Read review
$1,183Queen · list priceSee price
RV hybrid
RVMattress.comCopperFlex RV Hybrid
- Hybrid
- 10 in thick
- Medium-Firm
$799Queen · list priceSee price
Custom size
Mattress InsiderLuxury Gel Memory Foam
- Memory foam
- 8 in thick
- not stated
Made to 60 × 80 inGet a quote
The Access bedroom. Measure the platform, not the old mattress, before you buy.
Bed sizes by year
| Year | Main bed | Bunks | Other beds | Source |
|---|---|---|---|---|
| 2025 | 60 × 80 in Queen | – | – | Winnebago Access specifications sheet |
| 2026 | 60 × 80 in Queen | – | – | Winnebago spec sheet |
Years not listed weren't published.
The 18RK floorplan
Winnebago's 2026 18RK floorplan.
Is this your 18RK?
Check the year and length against your RV before you order.
| Year | Model | Length | Sleeps |
|---|---|---|---|
| 2025 | Access 18RK | 22'6" | 4 |
| 2026 | Access 18RK | 22 ft 6 in | 4 |
Other Access mattress sizes
Sources
- bishs.com: https://www.bishs.com/product/new-2026-winnebago-access-18rk-3535308-29
- Winnebago (winnebago.com): https://www.winnebago.com/Files/Images/Winnebago/Products/2026/Access/18RK-Floorplan-Page/Access-18RK-26-T%20%281%29.png
- Winnebago (winnebago.com): https://www.winnebago.com/models/product/specifications/towables/travel-trailer/2025-access
Questions
What size mattress is in the Winnebago Access 18RK?
The main bed is 60 × 80 in (Winnebago spec sheet, 2026).